Cr-Ni-Mo-A1-Tiマルエージング鋼のTRIP挙動に関する実験的考察 : 背応力の進展量と等変態分率線について

概要

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The quantitative identification of the backstress evolution is carried out in a Cr-Ni-Mo-Al-Ti maraging steel under thermomechanical loading conditions. The evolution depends on the direction of the applied stress; tensile, compressive or shear. The iso-volume fraction lines (the iso-ζ lines) are determined between the transformation-start line and the transformation-finish line on the applied hold stress-temperature plane. The iso-ζ lines are composed of a tensile-branch and a compressive-branch, each of which is parallel to the martensite-start line. The cross point of the tensile- and compressive-branches of the iso-ζ line shifts to the direction of the backstress evolution. The almost hold stress-independent martensite-fmish line is proved to be attributed to the backstress evolution.
社団法人日本材料学会の論文
2002-03-15